Abstract: A door assembly includes a door panel having a first pair of bearings secured to a top portion of the door panel and a second pair of bearings secured to a bottom portion of the door panel. A wall having an opening which extends through the wall wherein a first rail track extends along a first end portion of the opening having a first opening and a second rail track extends along a second end portion of the opening having a second opening. At least one hinge blocking assembly includes a first bracket connected to the wall and a second bracket wherein the second bracket is rotatably mounted to the first bracket about a fixed axis of rotation defined by the at least one hinge blocking assembly wherein with the second bracket in a first position the second bracket extends away from the first bracket.

Abstract: A landing platform control system and methods used for refuel or recharge purposes by a fleet of unmanned aerial vehicles (UAVs) performing aerial surveys are disclosed. The system can include a plurality of landing platforms positioned at predetermined locations within the area of interest, each landing platform comprising a mount connecting the landing platform to a surface, a mount component for coupling a floor, a floor to support a UAV while docked at the landing platform, a cover enclosing the floor; a battery charger; and a communications interface. The floor can be rotated to clear any accumulated debris. The cover can be coupled to the floor. The cover can alternate between open and closed position via rotating along the same axis as the floor.